Daikin FTYN25DV3B ATY20DV2 Service Manual Download Page 72

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SiBE01-503

Troubleshooting

Service Diagnosis

4.6

High

Pressure Control in Cooling

Remote
Controller
Display

Method of
Malfunction
Detection

High-pressure control (stop, frequency drop, etc.) is activated in the cooling mode if the
temperature being sensed by the heat exchanger thermistor exceeds the limit.

Malfunction
Decision
Conditions

Activated when the temperature being sensed by the heat exchanger thermistor rises above
63°C (RYN models) or 65°C (ARY models).

Deactivated when the temperature drops below 48°C (RYN models) or 50°C (ARY models).

Supposed
Causes

The installation space is not large enough.

Faulty outdoor unit fan

Faulty heat exchanger thermistor

Faulty stop valve

Dirty heat exchanger

Summary of Contents for FTYN25DV3B ATY20DV2

Page 1: ...SiBE01 503 SPLIT Pair D Series Applied Models zNon Inverter Pair Heat Pump...

Page 2: ...SiBE01 503 Table of Contents i Non Inverter Pair D Series zHeat Pump Indoor Unit FTYN25DV3B ATY20DV2 FTYN35DV3B ATY25DV2 ATY35DV2 Outdoor Unit RYN25DV3B ARY20DV2 RYN35DV3B ARY25DV2 ARY35DV2...

Page 3: ...8 1 6 Night Set Mode 19 1 7 POWERFUL Operation 20 1 8 Other Functions 21 2 Function of Thermistor 22 3 Control Specification 23 3 1 Four Way Valve Switching 23 3 2 3 Minutes Standby 23 3 3 Compressor...

Page 4: ...l Procedure 71 1 Indoor Unit 72 1 1 Removal of Air Filter 72 1 2 Removal of Front Grille 75 1 3 Removal of Horizontal Blades Vertical Blades 78 1 4 Removal of Electrical Parts Box PCB Swing Motor 80 1...

Page 5: ...SiBE01 503 iv Table of Contents Index i Drawings Flow Charts iii...

Page 6: ...lug socket before disassembling the equipment for a repair Working on the equipment that is connected to a power supply can cause an electrical shook If it is necessary to supply power to the equipmen...

Page 7: ...he applicable model and appropriate tools to conduct repair work Never attempt to modify the equipment The use of inappropriate parts or tools can cause an electrical shock excessive heat generation o...

Page 8: ...be located and the repair work must be stopped be sure to perform pump down and close the service valve to prevent the refrigerant gas from leaking into the room The refrigerant gas itself is harmles...

Page 9: ...g and repair it if the equipment is not properly grounded Improper grounding can cause an electrical shock Be sure to measure the insulation resistance after the repair and make sure that the resistan...

Page 10: ...SiBE01 503 List of Function 1 Part 1 List of Function 1 Functions 2...

Page 11: ...Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 1 Comfort Airflow Mode Wiring Error Check 3 Step Airflow H P Only Anticorrosion Treatment of Outdoor Heat Exchanger Comfort C...

Page 12: ...Worry Free Reliability Durability Auto Restart after Power Failure 3 Step Airflow H P Only Self Diagnosis Digital LED Display Comfort Control Auto Fan Speed Wiring Error Check Indoor Unit Silent Oper...

Page 13: ...Functions SiBE01 503 4 List of Function...

Page 14: ...SiBE01 503 Specifications 5 Part 2 Specifications 1 Specifications 6...

Page 15: ...rd Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 19 0 19 0 19 0 19 Power Consumption Rated W 40 40 40 40 Power Factor 92 92 92 92 Temperature Con...

Page 16: ...Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current A 0 19 0 19 0 19 0 19 Power Consumption W 40 40 40 40 Power Factor 96 96 96 96 Temperature Control Microcomp...

Page 17: ...ght Left Horizontal Downward Air Filter Removable Washable Mildew Proof Running Current A 0 19 0 19 Power Consumption W 40 40 Power Factor 96 96 Temperature Control Microcomputer Control Dimensions H...

Page 18: ...SiBE01 503 Printed Circuit Board Connector Wiring Diagram 9 Part 3 Printed Circuit Board Connector Wiring Diagram 1 Printed Circuit Board Connector Wiring Diagram 10 1 1 Indoor Unit 10...

Page 19: ...nnector for signal receiver PCB 8 S32 Connector for indoor heat exchanger thermistor 9 S33 Connector for outdoor heat exchanger thermistor 10 H1 Connector for compressor outdoor unit 11 H2 H4 Connecto...

Page 20: ...cuit Board Connector Wiring Diagram Printed Circuit Board Connector Wiring Diagram 11 Control PCB Signal Receiver PCB S4 S5 S27 LED A J30 JC JA S32 R4670 S33 S6 S7 H5 H4 H3 V2 S1 H2 S2 V1 FU1 H1 LED1...

Page 21: ...Printed Circuit Board Connector Wiring Diagram SiBE01 503 12 Printed Circuit Board Connector Wiring Diagram...

Page 22: ...ic Operation 17 1 5 Programme Dry Function 18 1 6 Night Set Mode 19 1 7 POWERFUL Operation 20 1 8 Other Functions 21 2 Function of Thermistor 22 3 Control Specification 23 3 1 Four Way Valve Switching...

Page 23: ...The flap presses the warm air above the floor to reach the entire room Cooling Mode During cooling mode the flap retracts into the indoor unit Then cool air can be blown far and pervaded all over the...

Page 24: ...setting button is set to automatic Note 1 During powerful operation fan operates at 1340 1390rpm 2 Fan stops during defrost operation 3 In time of thermostat OFF the fan rotates at following speed Coo...

Page 25: ...oom temperature and the setpoint Cooling Thermostat OFF Room temperature setpoint 0 C Thermostat ON Room temperature setpoint 1 C Heating Thermostat OFF Room temperature setpoint 2 C Thermostat ON Roo...

Page 26: ...correction value cooling 1 C heating 1 C Mode switching point and operation ON OFF point are as follows Cooling Heating Room temperature setpoint 2 C Heating Cooling Room temperature setpoint 2 C Coo...

Page 27: ...djustment and fan adjustment buttons are inoperable in this mode Details of the Control The microcomputer automatically sets the target temperature and fan setting L tap Target temperature is determin...

Page 28: ...the room at the set temperature for the first one hour then automatically lowers the temperature setting slightly in the case of heating or raises it slightly in the case of cooling for economical op...

Page 29: ...pushed the fan speed and the target temperature will be converted to the following states for 20 minutes Ex POWERFUL operation in cooling mode Operation mode Fan speed Target temperature Cooling HH ta...

Page 30: ...8 4 Titanium Apatite Photocatalytic Air Purifying Filter This filter combines the Air Purifying Filter and Titanium Apatite Photocatalytic Deodorizing Filter in a single highly effective unit The filt...

Page 31: ...r thermistor is used for high pressure control during cooling operation B Indoor Heat Exchanger Thermistor DCN 1 The indoor heat exchanger thermistor is used to prevent freezing During the cooling ope...

Page 32: ...pressor for 3 minutes after turning it off except when defrosting 3 3 Compressor Protection Function When the compressor turns ON it keeps running at least 120 seconds except when defrosting 3 4 Fan O...

Page 33: ...e controlling The compressor halts The outdoor fan switches ON OFF according to the temperature of the indoor heat exchanger Conditions for ending Temperature of the indoor heat exchanger 42 C or Cool...

Page 34: ...le to prevent the outdoor heat exchanger being frosted The defrosting time or outdoor heat exchanger temperature must be more than its fixed value when finishing Detail Time chart for 35 class Compres...

Page 35: ...Control Specification SiBE01 503 26 Functions and Control...

Page 36: ...n 28 2 Instructions 29 2 1 Safety Precautions 29 2 2 Names of Parts 31 2 3 Preparation before Operation 34 2 4 AUTO DRY COOL HEAT FAN Operation 37 2 5 Adjusting the Air Flow Direction 39 2 6 POWERFUL...

Page 37: ...ver method of using it In order to meet this expectation of the users giving sufficient explanations taking enough time can be said to reduce about 80 of the requests for servicing However good the in...

Page 38: ...out repairs accompanying adding refrigerant check the content of the repairs with our service staff Do not attempt to install the air conditioner by your self Incorrect work will result in water leaka...

Page 39: ...age Incomplete draining may cause wetting of the building furniture etc Do not operate the air conditioner with wet hands Do not wash the indoor unit with excessive water only use a slightly wet cloth...

Page 40: ...SiBE01 503 Instructions System Configuration 31 2 2 Names of Parts 4 Names of parts Indoor Unit ON OFF 1 3 4 8 9 10 13 14 7 11 12 2 5 6...

Page 41: ...ion Push once again to stop it This switch is useful when the remote controller is missing Pressing the switch in an emergency allows you to select cooling or heating page 11 The operation mode refers...

Page 42: ...page 13 4 ON OFF button Press this button once to start operation Press once again to stop it The button glows even in dark rooms 5 TEMPERATURE adjustment buttons It changes the temperature setting 6...

Page 43: ...use batteries of the same type and replace the two old batteries together When the system is not used for a long time take the batteries out We recommend replacing once a year although if the remote c...

Page 44: ...it 2 Fix the holder to a wall a pillar or similar location with the screws procured locally 3 Place the remote controller on the bottom tabs of the remote controller holder and push ATTENTION About re...

Page 45: ...iod for example in spring or autumn turn the breaker OFF If the flap opens turn on the breaker to close it Use the air conditioner in the following conditions Operation outside this humidity or temper...

Page 46: ...ton and select a operation mode Each pressing of the button advances the mode setting in sequence AUTO DRY COOL HEAT FAN 2 Press ON OFF button The OPERATION lamp lights up To stop operation 3 Press ON...

Page 47: ...in lower outdoor temperatures If the heating effect is insufficient it is rec ommended to use another heating appliance in combination with the air conditioner The heat pump system heats the room by c...

Page 48: ...on the left side and the right side blades Notes on flaps and louvers angles When SWING button is selected the flaps swinging range depends on the operation mode See the figure ATTENTION Always use a...

Page 49: ...with the settings which were used before POWERFUL operation When using POWERFUL operation there are some functions which are not available is displayed on the LCD To cancel POWERFUL operation 2 Press...

Page 50: ...F TIMER operation 1 Press OFF TIMER button The time changes in 1 hour increments every time the button is pushed with a maximum of 9 hours To cancel the OFF TIMER operation 2 Press CANCEL button The T...

Page 51: ...e TIMER lamp goes off To combine ON TIMER and OFF TIMER A sample setting for combining the two timers is shown below ATTENTION In the following cases set the timer again After a breaker has turned OFF...

Page 52: ...e front panel Set the 3 keys of the front panel into the slots and push them in all the way Close the front panel slowly and push the panel at the 3 points 1 on each side and 1 in the middle Check to...

Page 53: ...wash them with neutral detergent thinned with lukewarm water then dry them up in the shade It is recommended to clean the air filters every two weeks Titanium Apatite Photocatalytic Air Purifying Filt...

Page 54: ...and the outlets of the indoor unit and the outdoor unit Check that the drain comes smoothly out of the drain hose during COOL or DRY operation If no drain water is seen water may be leaking from the...

Page 55: ...r or steam when the air conditioner is in defrost operation In COOL or DRY mode Moisture in the air condenses into water on the cool surface of outdoor unit piping and drips Mists come out of the indo...

Page 56: ...e windows and doors closed Are the air flow rate and the air direction set appropriately Operation stops suddenly OPERATION lamp flashes Are the air filters clean Is there anything to block the air in...

Page 57: ...ctly you will help to prevent potential negative consequences for the environment and human health Please contact the installer or local authority for more information Batteries must be removed from t...

Page 58: ...notifies with a long beep NOTE Fault diagnosis CODE MEANING SYSTEM 00 NORMAL INDOOR UNIT A1 INDOOR PCB DEFECTIVENESS A5 HIGH PRESSURE CONTROL OR FREEZE UP PROTECTOR A6 FAN MOTOR FAULT C4 FAULTY HEAT...

Page 59: ...Instructions SiBE01 503 50 System Configuration...

Page 60: ...t PCB Abnormality 58 4 3 Freeze up Protection Control or High Pressure Control 59 4 4 Fan Motor or Related Abnormality AC motor 61 4 5 Thermistor or Related Abnormality Indoor Unit 62 4 6 High Pressur...

Page 61: ...of the indoor or outdoor unit is activated or when the thermistor malfunctions disabling equipment operation 2 When a signal transmission error occurs between the indoor and outdoor units In either ca...

Page 62: ...ailure of 2 to 10 cycles can stop air conditioner operation Operation lamp OFF Check the outdoor air temperature Heating operation cannot be used when the outdoor air temperature is 20 C or higher and...

Page 63: ...indication changes in the sequence shown below and notifies with a long beep Note 1 A short beep and two consecutive beeps indicate non corresponding codes 2 To cancel the code display hold the timer...

Page 64: ...he digit does not blink 2 Press the TEMP button Press TEMP or TEMP and change the digit until you hear the sound of beep or pi pi 3 Diagnose by the sound pi The number of tens does not accord with the...

Page 65: ...e sound pi The both numbers of tens and units do not accord with the error code pi pi The number of tens accords with the error code beep The both numbers of tens and units accord with the error code...

Page 66: ...System 00 Normal Indoor Unit A1 Indoor unit PCB abnormality 58 A5 Freeze up protection control or high pressure control 59 A6 Fan motor or related abnormality AC motor 61 C4 Heat exchanger thermistor...

Page 67: ...ro cross detection in approximately 1 25 continuous seconds Supposed Causes Faulty indoor unit PCB Faulty connector connection Troubleshooting Note Connector Nos vary depending on models Connector con...

Page 68: ...e detected by the indoor unit heat exchanger thermistor Malfunction Decision Conditions High pressure control During heating operations the temperature detected by the indoor heat exchanger thermistor...

Page 69: ...mulation on the indoor unit heat exchanger YES YES Is there any short circuit Is it very dirty Is it very dirty Does it conform to the thermistor characteristic chart NO Provide sufficient air passage...

Page 70: ...or due to faulty indoor unit PCB Troubleshooting Check No 16 Refer to P 69 Rotate the fan by hand Check No 16 Check Hall IC Operate the fan Does it rotate NO Does it rotate smoothly Is there an output...

Page 71: ...istor above about 100 C less than 670 Room temperature thermistor above about 70 C less than 1 7k Supposed Causes Faulty connector connection Faulty thermistor Faulty PCB Troubleshooting Check No 06 R...

Page 72: ...sensed by the heat exchanger thermistor exceeds the limit Malfunction Decision Conditions Activated when the temperature being sensed by the heat exchanger thermistor rises above 63 C RYN models or 6...

Page 73: ...damage may be occurred Replace the fan motor Repair the connector or fan motor lead wires Replace the heat exchanger thermistor Replace PCB Change the air outlet grille position Change the installatio...

Page 74: ...ected by checking the thermistor input voltage to the microcomputer A thermistor error is detected by checking the temperature Malfunction Decision Conditions The thermistor input is above 4 96 V or b...

Page 75: ...mistor Replace the indoor unit PCB R4743 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Error displayed again on remote controller NO Y...

Page 76: ...PCB and measure the resistance of each thermistor using tester The relationship between normal temperature and resistance is shown in the graph and the table below Thermistor R25 C 10k B 3950 Temperat...

Page 77: ...r Change the installation location or direction Check the outside air temperature temperature of air taken in by the outdoor unit The outside air temperature shall be 46 C or lower Check the allowable...

Page 78: ...PCB Replace the PCB Failure of 2 faulty Hall IC Replace the fan motor Both 1 and 2 result Replace the PCB Check the fan motor lead wire connector for secure connection Abnormal YES NO NO Continuity Ar...

Page 79: ...Check SiBE01 503 70 Service Diagnosis...

Page 80: ...arts Box PCB Swing Motor 80 1 5 Removal of Heat Exchanger 86 1 6 Install of Drain Plug 89 1 7 Removal of Fan Rotor Fan Motor 90 2 Outdoor Unit 94 2 1 Removal of Panels 94 2 2 Removal of Bellmouth and...

Page 81: ...ced cooling operation will be carried out for approx 15 minutes When the signal receiver catches a signal from the remote controller it produces beep sound and the operation lamp blinks 2 Remove the a...

Page 82: ...ided on the both sides of the unit s panel and open up the panel to the position higher than it will stop Support the front panel by one hand while remove the rotation axis at the upper center by the...

Page 83: ...Indoor Unit SiBE01 503 74 Removal Procedure 3 When restoring the air filter make sure that the projection parts on the panel are in the guide groove and then shut the panel Step Procedure Points...

Page 84: ...e Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the service cover 1 Remove a service cover mounting screw Ope...

Page 85: ...ped in the existing models are not provided 2 Disengage the two hooks on the upper part In case that the hooks are not pressed from above remove the front panel and then remove the grille while pushin...

Page 86: ...Removal Procedure 77 3 The front grille can be removed in a manner to pull out the upper part forward and lift up the lower part When restoring the grille Make sure whether each hook is set as it was...

Page 87: ...turning off all power supplies before disassembling work Step Procedure Points 1 Remove the horizontal blades 1 Lift horizontal blade to open position Screw stoppers inside the flap which were equipp...

Page 88: ...he blade to the tip while rotating it 2 Restore the two fixed parts of the horizontal blade onto the hook 2 Remove the vertical blades 1 Disengage the vertical blade s joint from the fixed plate 2 Rem...

Page 89: ...sembling work Step Procedure Points Remove the front grill 1 Remove the electrical parts box 1 Disconnect the connection wires 2 Disconnect the connectors of fan motor S1 and S7 Pay attention to the d...

Page 90: ...r Unit Removal Procedure 81 5 Remove a screw on the terminal strip The electrical parts box can be removed instead of disengaging the terminal strip 6 Remove a screw on the electrical parts box Step P...

Page 91: ...Indoor Unit SiBE01 503 82 Removal Procedure 7 Pull up the electrical parts box forward to remove A hook is provided on the behind Step Procedure Points...

Page 92: ...ircuit board PCB 1 Remove the shelter 2 Disengage the front plate of the electrical parts box Disengage the knobs by pushing the two hooks at the top and the bottom 3 Sliding to the left the front par...

Page 93: ...Indoor Unit SiBE01 503 84 Removal Procedure 4 Disengage the four knobs on the back of the signal receiver PCB 5 Signal receiver PCB Step Procedure Points...

Page 94: ...t board 3 Remove the swing motor assembly 1 To remove swing motor assembly remove two screws Manual adjusting for the vertical blades Provide a supporter so that the joint link will not drop off in ca...

Page 95: ...to refrigerating cycle Mixing of air or other gas causes abnormal temperature rise in refrigerating cycle and this results in pipe rupture or personal injuries Pay attention so that the residual drain...

Page 96: ...an angle of 10 to 20 degrees Be careful to prevent pipe deformation 6 Disengage hooks located right and left side and pull heat exchanger forward The hooks are symmetrically placed in the right and t...

Page 97: ...3 88 Removal Procedure 7 Lift and remove heat exchanger Caution When removing or re installing heat exchanger be sure to wear protective gloves or wrap heat exchanger with cloths Fins can cut fingers...

Page 98: ...ower supplies before disassembling work Step Procedure Points 1 Disconnect drain hose The drain pan is integrated with the bottom plate 2 Pull out the drain plug in the left on the drain pan by hand 3...

Page 99: ...7 Removal of Fan Rotor Fan Motor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points Remove the heat exchanger 1 T...

Page 100: ...SiBE01 503 Indoor Unit Removal Procedure 91 2 Disengage hook 3 Loosen the hexagon head set screw on the fan rotor Step Procedure Points...

Page 101: ...Indoor Unit SiBE01 503 92 Removal Procedure 4 Remove the motor and fan rotor 5 Remove a screw on the left side panel Step Procedure Points...

Page 102: ...val Procedure 93 6 Disengage a hook from the backward 7 Since the fan bearing is made of rubber push it strongly off from the inside The bearing can be removed just as the left side plate is attached...

Page 103: ...oved when the fixed screw is removed As three hooks are provided at three portions slide the cover downward to remove The forced cooling operation in the pumping down mode can be carried out by pushin...

Page 104: ...screw in the rear of the top plate Once lift the top plate and then remove it forward The left side plate and the bellmouth can be removed all at once When restoring the top plate move it horizontall...

Page 105: ...pplies before disassembling work Step Procedure Points 1 The bellmouth is attached with two screws and four hooks Remove the bellmouth beginning the front plate after removing the two screws which are...

Page 106: ...fter turning off all power supplies before disassembling work Step Procedure Points 1 To remove the shelter 1 Remove the three fixed screws for removing the shelter 2 Remove the shelter 2 To remove th...

Page 107: ...ved when the washer faced nut M8 is removed Be sure to avoid forgetting to restore the shelter and to avoid losing or damaging it When restoring match the mark of the propeller fan with the D cut of t...

Page 108: ...Points 1 To remove the right side plate 1 Remove the three screws for removing the right side plate 2 Lift the right side plate to disengage the hooks Insert the three hooks for the restoration 2 To r...

Page 109: ...01 503 100 Removal Procedure 2 Pull out the sound blanket Since the sound blanket is torn easily remove it carefully When restoring sound blanket should pass the internal side of the piping Step Proce...

Page 110: ...Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 To remove the partition plate 1 Disengage the lead wires from the wire clip 2...

Page 111: ...Outdoor Unit SiBE01 503 102 Removal Procedure 4 When restoring the partition plate put the hook into the bottom frame Step Procedure Points...

Page 112: ...turning off all power supplies before disassembling work Step Procedure Points 1 To remove the parts around the compressor Be careful so as not to burn the compressor terminals or the name plate 1 Rem...

Page 113: ...about pipes and so on which were heated up by a gas brazing machine so as not to get burnt on your hands Pay attention so that the heat exchanger s fins will not be burnt 3 Remove the nut by means of...

Page 114: ...SiBE01 503 Others 105 Part 8 Others 1 Others 106 1 1 Trial Operation and Testing 106 1 2 Pump Down Operation 106 1 3 Jumper Settings 107...

Page 115: ...r in its standby mode If the system is not to be used for some time after installation shut off the circuit breaker to eliminate unnecessary power consumption If the circuit breaker trips to shut off...

Page 116: ...tallic cover to remove it 4 claws on the electrical parts box Cut the jumper JA on PCB Wireless remote controller Cut the jumper J4 1 3 2 Jumper Setting R4758 Address J4 CUT EXIST 1 2 Metallic cover P...

Page 117: ...Others SiBE01 503 108 Others...

Page 118: ...SiBE01 503 Appendix 109 Part 9 Appendix 1 Piping Diagrams 110 1 1 Indoor Units 110 1 2 Outdoor Units 111 2 Wiring Diagrams 113 2 1 Indoor Units 113 2 2 Outdoor Units 113...

Page 119: ...G 4 8CuT 7 0CuT 9 5CuT HEAT EXCHANGER 7 0CuT 7 0CuT 4D048781 FIELD PIPING FIELD PIPING 6 4CuT 9 5CuT 7 9CuT CROSS FLOW FAN FAN MOTOR THERMISTOR ON HEAT EXCH M INDOOR UNIT REFRIGERANT FLOW HEATING COOL...

Page 120: ...satisfaction M 06010 Delete the outdoor temperature thermistor from the service manual SiBE01 503 on page 111 and 112 Refer to the attached pages Case Model RYN25DV3B RYN35DV3B ARY20DV2 ARY25DV2 ARY35...

Page 121: ...ING FIELD PIPING 6 4CuT 9 5CuT HEAT EXCHANGER THERMISTOR CAPILLARY TUBE 1 CAPILLARY TUBE 2 CHECK VALVE REFRIGERANT FLOW HEATING COOLING 3D048804 9 5CuT 6 4CuT 7 9CuT OUTDOOR UNIT PROPELLER FAN HEAT EX...

Page 122: ...FRIGERANT FLOW COOLING HEATING 9 5CuT 6 4CuT 6 4CuT OUTDOOR TEMPERATURE THERMISTOR HEAT EXCHANGER THERMISTOR CAPILLARY TUBE 1 CAPILLARY TUBE 2 CHECK VALVE GAS STOP VALVE WITH SERVICE PORT LIQUID STOP...

Page 123: ...ARREATER T1R TRANSFORMER V1 V2 VARISTOR TFU THERMAL FUSE MR1 MR4 MAGNETIC RELAY WHT BRN BLU BLK RED GRN YLW RED WHT BLK YLW YLW WHT RED CAUTION NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF THE M...

Page 124: ...r S R C M1C M1F 1 M 1 M POWER SUPPLY 220V 50Hz GRN YLW BLU BLU BLK BLU RED RED RED YLW WHT RED BLK RED NOTE 1 REFER TO THE NAMEPLATE FOR THE POWER REQUIREMENTS C1R C2R RUNNING CAPACITOR X10A CONNECTOR...

Page 125: ...diagnosis mode 55 drain hose 86 89 drain plug 89 E electrical device mounting plate 97 electrical parts box 80 error codes 00 57 A1 58 A5 59 A6 61 C4 62 C9 62 F6 63 J6 65 F F6 63 fan motor 80 90 98 fa...

Page 126: ...80 S2 10 S26 10 S27 10 S32 10 S33 10 S4 10 S5 10 S6 10 80 S7 10 80 safety precautions 29 self diagnosis digital display 21 service check function 54 service cover 75 shelter 83 97 signal receiver 72...

Page 127: ...F button on indoor unit 21 operation lamp location 52 outdoor unit fan system check 69 P piping diagrams ARY20DV2 111 ARY25DV2 111 ARY35DV2 112 ATY20DV2 110 ATY25DV2 110 ATY35DV2 110 FTYN25DV3B 110 FT...

Page 128: ...n product corrosion Ask a qualified installer or contractor to install this product Do not try to install the product yourself Improper installation can result in water or refrigerant leakage electric...

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Daikin FTYN25DV3B ATY20DV2, Service Manual

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